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Effects of dietary fatty acids on burn-induced immunosuppression

Bordé, Viviane D.; Bernier, Jacques ORCID logoORCID: https://orcid.org/0000-0002-0594-5922 et Garrel, Dominique R. (2002). Effects of dietary fatty acids on burn-induced immunosuppression Cellular Immunology , vol. 220 , nº 2. pp. 116-124. DOI: 10.1016/S0008-8749(03)00003-0.

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Résumé


Previous studies from our laboratory established that low-fat diets prevent immunosuppression and reduce oxidative stress after a thermal injury. The purpose of the present study was to test the hypothesis that the type of dietary fatty acid influences splenocyte proliferation and oxidative stress following a burn injury. Female C3H/HeN mice were fed ad libitum six experimental diets (5% w/w lipids) differing in fatty acid composition for 10 days following a burn injury. Compared to the controls, burned mice fed whichever diet showed lower lymphoproliferative responses to concanavalin-A (Con-A) and lipopolysaccharide (LPS) (p < 0.01), but not to an anti-T cell receptor monoclonal antibody (H-57). In burned animals, nitric oxide (NO) concentration was negatively correlated to the proliferation induced by Con-A (p < 0.01) or LPS (p < 0.05). These results suggest that: (1) dietary fatty acid type does not influence the splenocyte proliferation or oxidative stress and (2) NO production is involved in the immunosuppression following burn injury.

Type de document: Article
Mots-clés libres: Burns; Dietary lipids; Immunosuppression; Oxidative stress
Centre: Centre INRS-Institut Armand Frappier
Date de dépôt: 25 déc. 2024 16:34
Dernière modification: 25 déc. 2024 16:34
URI: https://espace.inrs.ca/id/eprint/14427

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